Abstract: This application provides a communication method and an apparatus. The method includes: accessing, by an electronic device, a first network; performing network probing on the first network, where it is detected that the Internet cannot be accessed through the first network; and transmitting, in the first network and a second network, to-be-transmitted data through a network that matches the to-be-transmitted data, where the first network is different from the second network, and the electronic device can access the second network and maintain a connection to the first network. The Internet can be accessed through the second network. Even if the Internet cannot be accessed through the first network, the electronic device can still access the Internet through the second network, and is not disconnected from the first network, maintaining the capability of the first network to transmit data.

Abstract: This application provides a terminal device and a communication method. The terminal device is in a dual-connectivity network including a long term evolution (LTE) link and a new radio (NR) link, and when the terminal device detects that the terminal device is in a power saving mode, and/or when the terminal device detects that battery power of the terminal device is less than or equal to a first preset value, and/or when the terminal device detects that temperature of a rear cover of the terminal device is greater than or equal to a second preset value, the terminal device releases the NR link, and uses the LTE link for communication.